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Anemones, Anthothoe albocincta at Bare Island, La Perouse

This is the best of a bad lot. For some reason camera/flash combo decided it would over expose everything by about a stop. It has done this before although I am at a loss as to why. My eyes are too poor to be able to determine the overexposure on the LCD underwater.

Dive at Bare Island, La Perouse, 25/02/2007

Very cool Andrew. As for the not being able to determine the exposure underwater can you use the histogram on you lcd? i find this helps my exposure often.

Adam

Anemones is a greek word

Anemos in greek means wind. It is something like wind flowers.

Nice photo!

adame wrote:As for the not being able to determine the exposure underwater can you use the histogram on you lcd? i find this helps my exposure often.

Thanks for that Adam, I hadn't thought of it.

I went through some of the images from the dive and looked at the histogram for them. The one for this photo:



The histogram looks pretty normal, except for a very narrow, but very high peak on the right (which is obviously the overexposed white areas). I'm not sure I'd see that underwater. Here's the simulated histogram (from RawShooter Essentials 2005):



I guess I'll just have to give it a go. Maybe what I need to do is take some test shots when I put the gear together and check it above water. It seems that when it plays up it is consistent for the whole time.

iposiniditos wrote:Anemones is a greek word

Anemos in greek means wind. It is something like wind flowers.

Theo,

I guess to be more accurate, I should have said "sea anemones". Anemones are indeed flowers, although I didn't know how I got their name. Thanks for that. Sea anemones do look a bit like the terrestrial flowers only they are animals rather than plants. They are carnivores, too. mmm... meat.

Nice anemones Andrew, The nudie looks nice and sharp too, pity about the exposure.

I have had my housing a year, and have only been out about 6 times with it.

Wish I was back in Wollongong!

Do u use auto white balance? Maybe setting it manually will help?

Cool shots btw

Adam

admajic wrote:Do u use auto white balance? Maybe setting it manually will help?

Adam,

I usually use the "Direct Sunlight" option, but as I shoot in RAW (not in the raw), I can choose other options. One problem I have is that I use two strobes. One is rated at 5700K and the other 4800K. Before my next dive I'm going to try PRESET/Custom and see how well that works.

Try setting the WB to whatever the higher power strobe is. If they are same power then just stop one down a half to a full stop - a little bit of shadow helps show up the shape particularly on those bright white subjects.

Another thing to think about .......
Try and keep the strobe in front of the subject as well. Notice on the nudi how the shadows are facing forwards - a bit distracting to me

SteveGriffin wrote:Try and keep the strobe in front of the subject as well. Notice on the nudi how the shadows are facing forwards - a bit distracting to me

Can be a bit tricky when the nudibranch is only a few centimetres from the dome port.